6.6 Search Source Button
The search source can be:
-
Search-Directory,
-
Search-File,
-
Sub-Directory, and
-
Segment-File.
For more information, please see the ImageFinder User�s Guide. The �Type� button specifies the search-source:
string [] strMode = { "Dir", "File", "Sub Dir", "F Segment" };
internal int iMode = 0;
private void button3_Click(object sender, System.EventArgs e)
{
iMode = (iMode + 1 )% strMode.Length ;
if (iMode == 0 )
button3.Text = strMode[0];
else if (iMode == 1 )
button3.Text = strMode[1];
else if (iMode == 2 )
button3.Text = strMode[2];
else if (iMode == 3 )
button3.Text = strMode[3];
}
Now, we implement the �Source� button:
private void button2_Click(object sender, System.EventArgs e)
{
input.searchSource( iMode );
}
which in turn, calls the following function in the Input class:
public void searchSource (int iMode)
{
if ( iMode == 0 )
searchSource0 ();
else if ( iMode == 1 )
searchSource1 ();
else if ( iMode == 2 )
searchSource2 ();
else if ( iMode == 3 )
searchSource3 ();
else
searchSource0 ();
}//searchSource
The search source can be:
-
Search-Directory,
-
Search-File,
-
Sub-Directory, and
-
Segment-File.
For Search-Directory, the implementation is:
private void searchSource0 ()//dir
{
if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )
return;
string cDir = System.IO.Directory.GetCurrentDirectory();
f.textBox2.Text = cDir;
f.richTextBox1.AppendText ( cDir +"\n" );
filelist = in70.getDirList(cDir);
if ( filelist == null )
return;
if ( filelist.Length == 0 )
return;
f.richTextBox1.Text ="";
for (int i= 0; i < filelist.Length ; i++ )
f.richTextBox1.AppendText ("" + i + " " +filelist[i] +"\n" );
f.pictureBox2.Image = new Bitmap (filelist[0] );
f.richTextBox1.AppendText ( "Display the first image!\n" );
}
The first section of code gets the current search directory via the open file dialog:
if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )
return;
string cDir = System.IO.Directory.GetCurrentDirectory();
The next section gets a string list of the image paths:
filelist = in70.getDirList(cDir);
The third section prints the string list of the image paths:
f.richTextBox1.Text ="";
for (int i= 0; i < filelist.Length ; i++ )
f.richTextBox1.AppendText ("" + i + " " +filelist[i] +"\n" );
The last section displays the first images:
f.pictureBox2.Image = new Bitmap (filelist[0] );
To test, run the software and click the first image in folder, �c:\transapplet70\ex_wheel�.
Now, we implement Search-File:
private void searchSource1 ()//file
{
if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )
return;
string cDir = f.openFileDialog1.FileName ;
f.textBox2.Text = cDir;
f.richTextBox1.AppendText ( cDir +"\n" );
filelist = in70.getFileList (cDir);
if ( filelist == null )
return;
if ( filelist.Length == 0 )
return;
f.richTextBox1.Text ="";
for (int i= 0; i < filelist.Length ; i++ )
f.richTextBox1.AppendText ( "" + i + " " +filelist[i] +"\n" );
f.pictureBox2.Image = new Bitmap (filelist[0] );
f.richTextBox1.AppendText ( "Display the first image!\n" );
}
There is only one line difference between Search-Directory and Search-File:
filelist = in70.getFileList (cDir);
The rest of the code is identical to Search Directory.
To test, run the software and select file, �c:\transapplet70\ex_wheel\input_file1.txt�.
Now, we implement Sub-Directory and File-Segment:
private void searchSource2 ()//sub
{
if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )
return;
string cDir = System.IO.Directory.GetCurrentDirectory();
f.textBox2.Text = cDir;
f.richTextBox1.AppendText ( cDir +"\n" );
filelist = in70.getSubDirList (cDir);
if ( filelist == null )
return;
if ( filelist.Length == 0 )
return;
f.richTextBox1.Text ="";
for (int i= 0; i < filelist.Length ; i++ )
f.richTextBox1.AppendText ( "" + i + " " +filelist[i] +"\n" );
f.pictureBox2.Image = new Bitmap (filelist[0] );
f.richTextBox1.AppendText ( "Display the first image!\n" );
}
private void searchSource3 ()
{
if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )
return;
string cDir = f.openFileDialog1.FileName ;
f.textBox2.Text = cDir;
f.richTextBox1.AppendText ( cDir +"\n" );
filelist = in70.getFileSegmentList (cDir);
if ( filelist == null )
return;
if ( filelist.Length == 0 )
return;
f.richTextBox1.Text ="";
for (int i= 0; i < filelist.Length ; i++ )
f.richTextBox1.AppendText ( "" + i + " " +filelist[i] +"\n" );
f.pictureBox2.Image = new Bitmap (filelist[0] );
f.richTextBox1.AppendText ( "Display the first image!\n" );
}
Again, there is only one line difference between Search-Directory and these two functions.
To test the Sub-Directory, run the software and click the first image in folder, �c:\transapplet70\ex_wheel\�.
To test Segment-File, run the software and select file, �c:\transapplet70\ex_wheel\ input_filesegment1.txt�.
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